Monday, March 2, 2020

Mallard

More Mallard photos. These are at Capitol Lake in Olympia on 25 February 2020. The striking green of the Mallard’s head is the result of feather structure rather than of pigmentation. Birds (and some aquatic mammals) are able to sleep with one eye open and half of their brains awake. The ability, termed “unihemispheric sleep” allows them to sleep and be alert for predators

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